INFRARED REFLECTIVITY OF BI-2212 SINGLE-CRYSTALS WITH DIFFERENT OXYGEN STOICHIOMETRIES

Authors
PRENNINGER M PRUCKL A RENK KF BUCKLEY RG POOKE DM KISHIO K
Citation
M. Prenninger et al., INFRARED REFLECTIVITY OF BI-2212 SINGLE-CRYSTALS WITH DIFFERENT OXYGEN STOICHIOMETRIES, Physica. C, Superconductivity, 235, 1994, pp. 1131-1132
Citations number
6
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
235
Year of publication
1994
Part
2
Pages
1131 - 1132
Database
ISI
SICI code
0921-4534(1994)235:<1131:IROBSW>2.0.ZU;2-W
Abstract
A study of infrared reflectivity of Bi-2212 is reported for two crysta ls with different oxygen stoichiometries having T-c values of 91 K for an optimally doped sample and 73 K for an overdoped sample. At 10 K t he reflectivity of the optimally doped crystal is close to unity below 400 cm(-1) while for the overdoped crystal the reflectivity remains n oticeably smaller than unity. By Kramers-Kronig analysis we determined the dynamical conductivity of the two crystals.